Nannocharax zebra Dunz & Schliewen, 2009

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Characiformes \| Distichodontidae
Synonyms	... more
Common names	... more

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Main reference

Dunz, A.R. and U.K. Schliewen. 2009. (Ref. 80507)
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Size / Weight / Age

Max length : 3.9 cm SL male/unsexed; (Ref. 80507)

Environment

Benthopelagic; freshwater

Climate / Range

Tropical; 5°N - 6°N, 6°E - 10°E

Africa: Cameroon and Nigeria.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal soft rays (total): 12 - 14; Anal soft rays: 12 - 13. Nannocharax zebra is distinguished from all other described Nannocharax species except N. schoutedeni, N. latifasciatus, N. ansorgii and N. procatopus, by its shorter distance between posterior border of anus and articulation of first anal-fin ray (2.2–3.8 vs. 4.2–14.2% of SL). It differs from N. schoutedeni by having 39–43 vs. 36 or 37 lateral line scales, from N. latifasciatus by its major depth of caudal peduncle (55.9–63.8% vs. 48.1–50.8% of SL), from N. ansorgii by having 12–13 rather than 9 anal-fin rays, and from N. procatopus by having a lower caudal peduncle length (11.3–15.2% versus 18.0%), by having 39–43 rather than 36 lateral line scales. Coloration: an overall transparent fish, with a thin reddish band above the clearly visible backbone (Ref. 80507).

Almost all samples were collected in the Cameroonian portion of the Cross basin, i.e., riffles in the outlet of the Badi River into the Cross River and in the Cross River directly at Mamfé at a distance of less than one mile north of outlet of the Badi River. One additional albeit slighty aberrant specimen was collected in the Sombreiro River at Odieke, Nigeria (Ref. 80507).


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Harmless

Human uses
Fisheries:


More information
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Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Low vulnerability (10 of 100)

Entered by Busson, Frédéric

Modified by Bailly, Nicolas

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Page last modified by : elaxamana, 15 July 2009

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